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)(13,14,18,19)(15,21,23,17)(16,20,26,27)(22,28,24,25)(1,2,3,4)(7,12)(9,11)(13,15)(14,17)(16,22)(18,23)(19,21)(20,25)(24,26)(27,28)(5,7)(6,9)(8,12)(10,11)(14,19)(17,21)(20,27)(25,28) involution — undirected(5,6)(7,9)(8,10)(11,12)(13,15)(14,17)(16,24)(18,23)(19,21)(20,28)(22,26)(25,27) involution — undirected(13,16,18,26)(14,20,19,27)(15,22,23,24)(17,25,21,28)(13,17)(14,15)(16,25)(18,21)(19,23)(20,22)(24,27)(26,28) 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.