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)(19,27)(20,24)(21,25)(22,31)(23,29)(26,28)(30,32)(2,5)(6,7)(9,11)(10,14)(12,15)(13,16)(17,19,21,29)(18,23,25,27)(20,22,30,28)(24,26,32,31)(9,12,13,10)(11,15,16,14)(17,19,28,30,21,29,22,20)(18,24,31,23,25,32,26,27)(11,16)(14,15)(17,20,22,29,21,30,28,19)(18,23,26,24,25,27,31,32)(1,3,4,8)(2,6,5,7)(18,25)(23,27)(24,32)(26,31)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.