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