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