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)(12,16)(13,15)(19,26)(23,31)(27,32)(28,30)(1,3,5,4)(2,6,7,8)(9,11,14,10)(12,16,13,15)(17,18)(19,27)(20,24)(21,25)(22,29)(23,28)(26,32)(30,31)(2,7)(6,8)(9,12,14,13)(10,15,11,16)(17,19,21,26)(18,23,25,31)(20,28,22,30)(24,32,29,27)(9,12,14,13)(10,15,11,16)(17,20,21,22)(18,24,25,29)(19,28,26,30)(23,32,31,27)(1,4,5,3)(2,8,7,6)(9,13,14,12)(10,15,11,16)(18,24)(20,22)(23,32)(25,29)(27,31)(28,30)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.