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