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