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