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