Draw a large circle.
Draw a vertical center line from top to bottom.
Draw a horizontal center line from left to right.
Add a smaller circle inside the first circle, leaving an even margin.
Sketch a pentagon shape centered at the top, touching the inner circle.
Sketch five-sided shapes around it to form the first ring of pentagons.
Add a second ring of pentagons between the inner circle and outer circle.
Connect edges between adjacent pentagons so they align cleanly.
Draw the remaining pentagons so the pattern wraps around the whole ball.
Reinforce the outlines of the ball using darker lines.
Erase the construction lines and the smaller inner circle.
Add light shading: shade one side slightly darker and leave the opposite side lighter.
Add a subtle highlight on the lighter side with a soft edge.