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