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