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