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