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