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