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)(17,18,22,24)(19,25,29,23)(20,21,26,31)(27,32,30,28)(1,3)(2,4)(5,6)(7,8)(9,10)(11,15)(12,16)(13,14)(17,19)(18,23)(20,27)(21,28)(22,29)(24,25)(26,30)(31,32) involution — undirected(1,2)(3,8)(4,6)(5,7)(9,11,13,12)(10,15,14,16)(18,24)(21,31)(23,25)(28,32)(1,4,5,8)(2,6,7,3)(9,12,13,11)(10,16,14,15)(17,19)(18,25)(20,30)(21,28)(22,29)(23,24)(26,27)(31,32)(1,4)(2,3)(5,8)(6,7)(17,20,22,26)(18,21,24,31)(19,27,29,30)(23,28,25,32)(1,2)(3,4)(5,7)(6,8)(17,21)(18,26)(19,28)(20,24)(22,31)(23,30)(25,27)(29,32) 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.