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