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