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