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