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