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