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