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