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