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