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