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