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