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