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