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