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