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