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