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