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