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