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