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