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