How to Draw 3D Labeled Graph

It is possible to draw the figure with a couple of tikz commands. You only need to draw lines, circles, arcs, and put a node here an there with the labels. Also, the calc and 3d libraries can be useful with some scopes to change temporarily the frame of reference. Something like this:

documentclass[border=2mm]{standalone}
usepackage    {tikz}
usetikzlibrary{3d}
usetikzlibrary{calc}

begin{document}
begin{tikzpicture}[line cap=round,line join=round,
  x={(-0.5cm,-0.5cm)},y={(1cm,0cm)},z={(0cm,1cm)},        % cavalier axes 
%  x={(-0.86cm,-0.5cm)},y={(0.86cm,-0.5cm)},z={(0cm,1cm)}  % isometric axes
  ]
  defha{2.5}  % A height
  defhc{0.8}  % circle height
  defrc{1.5}  % circle radius
  defam{75}   % angle for m and B
  coordinate (O) at (0,0,0);
  coordinate (A) at (0,0,ha);
  coordinate (C) at (0,0,hc); % circle center
  coordinate (m) at ($(C)+(am:rc)$);
  coordinate (B) at ($(A)!1.4!(m)$);
  % AXES
  draw[-latex] (O) -- (1.5*ha,0,0) node [left]  {$x$};
  draw[-latex] (O) -- (0,1.5*ha,0) node [right] {$y$};
  draw         (O) -- (C);
  % circle (filled and not)
  draw[thick,blue,canvas is xy plane at z=hc,fill=blue!20,fill opacity=0.9] (0,0) circle (rc);
%  draw[thick,blue,canvas is xy plane at z=hc] (0,0) circle (rc);
  % angles
  begin{scope}[rotate around z=am, canvas is xz plane at y=0]
    draw[red]    ($(C)+(0.2,0)$)  |- ($(C)+(0,0.2)$);
    node[red] at ($(A)+(0,-0.4)$) [left] {$alpha$};
    clip (O) -- (A) -- (B) -- cycle;
    draw[red]   (A) circle (0.4);
    draw[red,dashed] (m) -- (C);
  end{scope}
  begin{scope}[canvas is xy plane at z=1.25*ha]
    draw[red,canvas is xy plane at z=1.25*ha,->] (0,-0.4) arc (-90:180:0.4);
    node[red] at (0,0.4) [right] {$omega$};
  end{scope}
  % line AB and points
  draw[-latex] (C) -- (0,0,1.5*ha) node [above] {$z$}; % top part of z axis
  draw[thick,gray] (A) node [black,left] {$A$} -- (B) node [black,below] {$B$};
  fill (m) circle (2pt) node [right] {$(x,y,z)$};
  node at (m) [below] {$m$};
  node at ($(A)!0.4!(m)$) [right] {$r$};
end{tikzpicture}
end{document}

I personally prefer the looks of the picture in isometric perspective rather than cavalier. I include both figures, and you can switch between one or another just commenting one set of axes x=..., y=..., z=....

EDIT: I added a filling to the disc, as @projetmbc suggested. I had to change the order of some elements, but the only real change is the filling.