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