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