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