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