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