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