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