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