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