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