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)(15,25)(16,27)(17,22)(18,24)(19,23)(20,26)(21,28)(1,2)(3,4)(6,10)(11,12)(13,14,17,22)(15,25,21,28)(16,26,20,27)(18,24,19,23)(13,15,17,21)(14,20,22,16)(18,27,19,26)(23,28,24,25)(2,4)(5,7,9,8)(6,11,10,12)(13,16,17,20)(14,21,22,15)(18,25,19,28)(23,26,24,27)(5,8,9,7)(6,11,10,12)(14,22)(15,21)(23,24)(26,27)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.