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