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