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