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