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