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