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