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