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