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