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