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