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