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