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