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