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