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