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