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