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