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