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