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