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