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