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