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