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