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