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