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