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