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