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