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