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