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