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