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