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