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