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