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