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