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