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