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