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