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