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