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