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