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)(22,25)(23,26)(24,29)(27,30)(31,32) involution — undirected(1,2,4,6,5,7,12,13)(3,9,11,16,10,8,15,14)(17,19,22,26,23,25,21,18)(20,28,31,24,30,27,29,32)(2,7)(6,13)(8,9)(14,16)(17,20)(18,24)(19,27)(21,29)(22,31)(23,30)(25,28)(26,32) involution — undirected(1,3,5,10)(2,8,7,9)(4,11,12,15)(6,14,13,16)(17,21,23,22)(18,19,26,25)(20,29,30,31)(24,27,32,28)(3,10)(8,9)(11,15)(14,16) 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.