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