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