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