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