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