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