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