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