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