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