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