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