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