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