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