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