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