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