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