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