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