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