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