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