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