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