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