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