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