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