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