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