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