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