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