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)(11,16)(12,13)(14,15)(17,18,21,20)(19,23,24,22)(25,26,28,31)(27,30,32,29)(1,3,4,8)(2,5,6,7)(10,15)(11,12)(17,19)(18,22)(20,23)(21,24)(25,27)(26,29)(28,32)(30,31)(2,6)(5,7)(9,11,14,12)(10,13,15,16)(17,18,21,20)(19,23,24,22)(25,27)(26,30)(28,32)(29,31)(1,3)(2,5)(4,8)(6,7)(9,12,14,11)(10,13,15,16)(17,20,21,18)(19,23,24,22)(1,2)(3,5)(4,6)(7,8)(9,13)(10,11)(12,15)(14,16)(17,19)(18,22)(20,23)(21,24)(25,26)(27,29)(28,31)(30,32) 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.