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)(16,27)(17,30)(18,34)(19,23)(21,33)(22,28)(24,37)(25,39)(26,36)(29,42)(31,35)(32,43)(38,40)(41,44) involution — undirected(2,4)(6,10)(11,12)(13,15,19,26)(14,20,23,36)(16,28,25,18)(17,31,32,29)(21,37,38,44)(22,39,34,27)(24,40,41,33)(30,35,43,42)(5,7,9,8)(6,11,10,12)(13,16,18,15,19,25,28,26)(14,20,22,27,23,36,34,39)(17,29,33,24,32,31,40,41)(21,35,30,37,38,42,43,44)(1,2,3,4)(13,17,28,40,19,32,18,33)(14,21,34,43,23,38,22,30)(15,24,16,29,26,41,25,31)(20,35,39,44,36,42,27,37)(5,8,9,7)(6,11,10,12)(17,32)(21,38)(24,41)(29,31)(30,43)(33,40)(35,42)(37,44)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.