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)(19,28)(20,25)(21,31)(22,26)(23,27)(24,30)(29,32)(1,2)(3,6)(4,7)(5,8)(9,10)(11,13)(12,14)(15,16)(17,19)(18,24)(20,22)(21,26)(23,30)(25,32)(27,28)(29,31) involution — undirected(1,3)(2,5)(4,8)(6,7)(17,20,23,31)(18,21,27,25)(19,29,30,22)(24,32,28,26)(9,11,12,15)(10,13,14,16)(17,20)(18,25)(19,22)(21,27)(23,31)(24,32)(26,28)(29,30)(1,3)(2,6)(4,8)(5,7)(17,21,23,25)(18,20,27,31)(19,26,30,32)(22,28,29,24)(1,2)(3,5)(4,7)(6,8)(17,22)(18,26)(19,20)(21,24)(23,29)(25,28)(27,32)(30,31) 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.