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