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