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