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