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