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