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