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