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