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