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