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