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