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