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