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