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