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