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