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