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