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