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