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