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)(17,18,21,24)(19,25,27,22)(20,28,29,23)(26,30,32,31)(1,3,4,8)(2,5,6,7)(9,11,14,13)(10,15,12,16)(17,19)(18,22)(20,26)(21,27)(23,30)(24,25)(28,31)(29,32)(1,3)(2,5)(4,8)(6,7)(9,11,14,13)(10,16,12,15)(17,18)(19,22)(20,23)(21,24)(25,27)(26,30)(28,29)(31,32)(1,3)(2,5)(4,8)(6,7)(9,12,14,10)(11,15,13,16)(17,18)(19,25)(20,23)(21,24)(22,27)(26,31)(28,29)(30,32)(1,2)(3,5)(4,6)(7,8)(9,13,14,11)(10,15,12,16)(17,19)(18,22)(20,26)(21,27)(23,30)(24,25)(28,31)(29,32)(17,20,21,29)(18,23,24,28)(19,26,27,32)(22,30,25,31)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.