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