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