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