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