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