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