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