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