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