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