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