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