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)(21,28)(24,39)(25,34)(26,35)(29,37)(30,36)(31,38)(33,41)(40,43)(42,44)(2,4)(5,6,8,9)(7,10,11,12)(13,15)(14,20)(16,24)(17,30)(18,25)(19,26)(21,33)(22,36)(23,35)(27,39)(28,41)(29,42)(31,40)(32,34)(37,44)(38,43)(6,9)(7,11)(13,16,18,28,19,29,17,31)(14,21,22,27,23,38,32,37)(15,24,25,41,26,42,30,40)(20,33,36,39,35,43,34,44)(5,7)(6,10)(8,11)(9,12)(13,17,19,18)(14,22,23,32)(15,25,26,30)(16,28,29,31)(20,34,35,36)(21,37,38,27)(24,40,42,41)(33,39,43,44)(6,9)(7,11)(15,26)(16,29)(20,35)(21,38)(25,30)(27,37)(28,31)(34,36) 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.