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