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)(18,20)(19,25)(24,28)(26,31)(33,34,37,41)(35,39,43,38)(36,44,45,40)(42,46,48,47)(2,7)(4,13)(5,8)(11,14)(17,18,22,20)(19,23,25,27)(21,28,29,24)(26,32,31,30)(33,34,37,41)(35,39,43,38)(36,44,45,40)(42,46,48,47)(2,7)(3,10)(9,12)(11,14)(19,25)(23,27)(26,31)(30,32)(33,35,37,43)(34,38,41,39)(36,42,45,48)(40,46,44,47)(1,3,6,10)(2,8,7,5)(4,14,13,11)(9,15,12,16)(17,19)(18,23)(20,27)(21,26)(22,25)(24,30)(28,32)(29,31)(33,35)(34,39)(36,42)(37,43)(38,41)(40,47)(44,46)(45,48)(1,4,6,13)(2,9,7,12)(3,11,10,14)(5,15,8,16)(17,20,22,18)(19,23,25,27)(21,28,29,24)(26,30,31,32)(33,34)(35,38)(36,40)(37,41)(39,43)(42,46)(44,45)(47,48)(1,5,6,8)(2,10,7,3)(4,15,13,16)(9,14,12,11)(17,21,22,29)(18,24,20,28)(19,26,25,31)(23,30,27,32)(33,36)(34,40)(35,42)(37,45)(38,46)(39,47)(41,44)(43,48)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.