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