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