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