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