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