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