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