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