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