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