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