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