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