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