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