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