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