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