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