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