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