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