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