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