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