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