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)(17,18,21,26,22,24,20,25)(19,23,28,30,29,31,27,32)(1,3)(2,6)(4,13)(5,12)(7,15)(8,10)(9,16)(11,14)(17,19)(18,23)(20,27)(21,28)(22,29)(24,31)(25,32)(26,30) involution — undirected(1,3)(2,7,8,16)(4,11)(5,12)(6,9,10,15)(13,14)(18,24)(19,27)(20,21)(23,30)(28,29)(31,32)A 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.