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