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