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