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