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