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