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