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