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