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