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