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