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)(11,12)(13,15)(14,16)(17,18)(19,23)(20,24)(21,22)(25,26,29,30)(27,28,31,32)(1,3)(2,4)(5,7)(6,8)(9,11,13,16)(10,14,15,12)(18,22)(20,23)(25,27)(26,28)(29,31)(30,32)(2,6)(3,7)(11,16)(12,14)(17,19,21,24)(18,23,22,20)(25,28,29,32)(26,27,30,31)(1,3)(2,4)(5,7)(6,8)(9,12)(10,11)(13,14)(15,16)(17,19)(18,20)(21,24)(22,23)(25,28)(26,27)(29,32)(30,31) involution — undirected(1,4)(2,3)(5,8)(6,7)(9,10)(11,12)(13,15)(14,16)(17,20)(18,19)(21,23)(22,24)(25,26)(27,28)(29,30)(31,32) 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.