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