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