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