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