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