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