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