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