One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,8)(3,7,4,6)(9,10,14,11,12,15,13,16)(17,18,20,24,22,26,21,25)(19,23,30,32,29,27,28,31)(1,3,5,4)(2,6,8,7)(9,11,14,15,12,16,13,10)(17,19,21,28,22,29,20,30)(18,23,25,31,26,27,24,32)(10,11)(13,14)(15,16)(17,18,22,26)(19,27,29,23)(20,25,21,24)(28,31,30,32)(1,4,5,3)(2,7,8,6)(10,15)(11,16)(17,20,22,21)(18,24,26,25)(19,28,29,30)(23,31,27,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.