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