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