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