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