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