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