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