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