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