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