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