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