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