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