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