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