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