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