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