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