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