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