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