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