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