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