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)(15,25)(16,30)(17,22)(18,23)(19,24)(20,28)(21,33)(26,35)(27,37)(29,36)(31,38)(32,40)(34,39)(41,42)(43,44) involution — undirected(1,2,3,4)(5,7)(6,9)(8,12)(10,11)(13,15,17,28,19,29,18,27)(14,20,23,25,24,37,22,36)(16,31,32,42,34,26,33,43)(21,38,39,44,40,35,30,41)(7,12)(9,10)(13,16,18,33,19,34,17,32)(14,21,22,30,24,40,23,39)(15,26,27,42,29,31,28,43)(20,35,36,44,37,38,25,41)(5,7)(6,10)(8,12)(9,11)(13,17,19,18)(14,22,24,23)(15,27,29,28)(16,32,34,33)(20,25,37,36)(21,30,40,39)(26,42,31,43)(35,41,38,44)(7,12)(9,10)(13,17,19,18)(14,22,24,23)(15,27,29,28)(16,32,34,33)(20,25,37,36)(21,30,40,39)(26,42,31,43)(35,41,38,44)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.