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