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