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