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