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