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