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