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