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