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