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