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