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