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