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