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