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