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