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