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