One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(5,6)(7,11)(8,9)(10,12)(13,14)(15,29)(16,33)(17,28)(18,25)(19,39)(20,40)(21,24)(22,31)(23,37)(26,35)(27,34)(30,41)(32,44)(36,43)(38,42) involution — undirected(6,9)(10,11)(13,15,18,31)(14,22,25,29)(16,34,32,35)(17,30,21,37)(19,36,20,38)(23,24,41,28)(26,44,27,33)(39,42,40,43)(1,2,3,4)(13,16,35,15,21,36,20,30,18,32,34,31,17,38,19,37)(14,23,39,42,28,22,27,44,25,41,40,43,24,29,26,33)(5,7,8,12)(6,10,9,11)(13,17,18,21)(14,24,25,28)(15,30,31,37)(16,36,32,38)(19,34,20,35)(22,41,29,23)(26,40,27,39)(33,42,44,43)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.