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