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