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