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