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