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