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