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