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