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