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