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