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