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