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