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