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