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