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