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