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