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