One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,10,4,9,6,8)(3,11,12,16,13,7,14,15)(17,18)(19,28)(20,33)(21,23)(22,27)(24,32)(25,35)(26,36)(29,37)(30,44)(31,40)(34,38)(39,43)(41,48)(42,45)(46,47)(1,3,6,14,4,13,5,12)(2,7,8,16,9,11,10,15)(18,23,27,26)(19,29,32,31)(20,34)(25,33,41,38)(30,45,46,43)(35,48)(39,42)(44,47)(2,8)(3,12)(5,6)(9,10)(13,14)(15,16)(17,19)(18,24)(20,30)(21,31)(22,32)(23,37)(25,39)(26,40)(27,28)(29,36)(33,47)(34,46)(35,45)(38,44)(41,42)(43,48) involution — undirected(2,9)(7,11)(8,10)(15,16)(17,20,21,35,22,34,36,48)(18,25,26,33,27,41,23,38)(19,30,31,45,32,46,29,43)(24,39,40,47,28,42,37,44)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.