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