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