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