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