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