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