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