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