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