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