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