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