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