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