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