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