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