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