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