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