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