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