One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,8)(3,4,6,5)(9,10,13,16)(11,14,12,15)(18,22)(20,23)(25,26,29,28)(27,30,31,32)(1,3,7,6)(2,5,8,4)(17,18,21,22)(19,20,24,23)(27,31)(30,32)(1,4,7,5)(2,3,8,6)(9,11,13,12)(10,14,16,15)(17,19,21,24)(18,23,22,20)(25,27,29,31)(26,30,28,32)(1,5,7,4)(2,3,8,6)(9,10)(11,14)(12,15)(13,16)(17,20)(18,19)(21,23)(22,24)(25,26,29,28)(27,30,31,32)(1,6,7,3)(2,4,8,5)(9,12,13,11)(10,15,16,14)(17,19)(18,20)(21,24)(22,23)(25,28,29,26)(27,32,31,30)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.