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