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