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