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