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