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