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