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