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