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