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