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