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