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