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