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