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