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