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