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