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