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