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