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