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