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