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