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