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