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