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