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